Transport: H-E-L-P

To the north-country adventurer of Bob Service days, help when he needed
it came at dogsled pace if at all. Nowadays there is new hope in the
north. Recently, scudding high over the bleak Canadian wastes near
White Horse, Pilot Sheldon Loucke's eye was caught by an unusual tangle
of tracks in the snow near an isolated cabin. Circling down, he saw
that they spelled out HELP. Pilot Loucke picked a spot, brought his
ski-shod airplane down near the cabin. The anxious wife of a trapper
laid low by blood poisoning had tramped out...